%0 Journal Article %A Baur, Ulrike %A Benner, Peter %T Cross-Gramian based model reduction for data-sparse systems %J Electronic transactions on numerical analysis %D 2008 %P 256-270 %V 31 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2008__31__a7/ %G en %F ETNA_2008__31__a7